/Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponents/Public/Selection/MeshTopologySelectionMechanic.h
class FMeshTopologySelectionMechanicSelectionChange : public [FToolCommandChange](API\Runtime\InteractiveToolsFramework\FToolCommandChange)
FGroupTopologyS...
After
FGroupTopologyS...
Before
int32
Timestamp